The current problem with Word is that I can't open a Word doc by clicking on a document in a folder; it stalls by saying "There was a problem sending the command to the program." Then it opens Word but not the document I requested. Instead I have to open Word first and open the doc by choosing Open in Word.
So docs can be opened from Word but not from Windows Explorer. FYI, I can open non-Word docs from Explorer w/out "Do you want to let the following program from an unknown publisher to make changes...?" or "There was a problem sending the command to the program."